crystalline composition of silver islands on Si(111) D. Wall S. Tikhonov S. Sindermann D. Spoddig C. Hassel M. Horn-von Hoegen F.-J. Meyer zu Heringdorf Photoemission electron microscopy and spot profile analyzing low-energy electron diffraction have been used to study the temperature-dependent growth of Ag islands on a Si(111) surface. Depending on growth temperature, various island shapes can...

Five nights photoelectric photometric observations through v and y bands confirm the pulsation of classical Am δ Scuti variable 60 Tau. Power spectrum of light curves shows multi-period pulsation behavior of 60 Tau and two pulsation modes f1=13.0364 and f2=11.8521 cycles per day are definitely identified. Classical Am star 60 Tau is a complicated pulsation δ Scuti variable. Considering the puls...

The seed-metering device of the no-tillage planter was driven by the ground wheel. Sliding was unavoidable when the ground was covered by the straw. High sliding brought seeding absence and affected the quality of sowing. In order to monitor the sliding of the ground wheel, a monitoring system composed of hardware and software was designed based on ATMEGA16 Microcomputer. In the system, the pra...

The nature of the fuel that drives today’s cosmic acceleration is an open and tantalizing mystery. We entertain the suggestion that the acceleration is not the manifestation of yet another new ingredient in the cosmic gas tank, but rather a signal of our first real lack of understanding of gravitational physics. By requiring that the underlying gravity theory respects Birkhoff’s law, we derive ...

Articles you may be interested in Resonance enhanced multiphoton ionization spectroscopy of the NF molecule: 1,3Φ 3d and 4d Rydberg states J. Rotationally resolved photoelectron spectra in resonance enhanced multiphoton ionization of H2O via the C 1 B 1 Rydberg state

Articles you may be interested in Rotationally resolved photoelectron spectra in resonance enhanced multiphoton ionization of H2O via the C 1 B 1 Rydberg state

Amal al-Wahish Advance Solid state 672 Instructor: Elbio Dagotto Spring 2009 Department of Physics and Astronomy, University of Tennessee [email protected] (Dated: March 21, 2009) Abstract In this work we look at the introduction to photoemission and application to layered oxides and it’s importance in the fields of surface science and condensed-matter. We present a historical introduction about p...

We calculate the double photoemission spectra from the occupied surface state of Cu(1 1 1). We present and discuss the regularities in the angular and energy distributions of the process. For the emission from the d-band of Cu(1 1 1), the depth of generation of correlated photoelectron pairs is estimated. 2002 Elsevier Science B.V. All rights reserved.